target/linux/generic/backport-6.1/715-21-v6.5-net-phylink-provide-phylink_pcs_config-and-phylink_p.patch

   1 From 796d709363135a6bd6a8ccc07b509c939e5b855f Mon Sep 17 00:00:00 2001
   2 From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
   3 Date: Tue, 23 May 2023 16:31:50 +0100
   4 Subject: [PATCH 19/21] net: phylink: provide phylink_pcs_config() and
   5  phylink_pcs_link_up()
   6
   7 Add two helper functions for calling PCS methods. phylink_pcs_config()
   8 allows us to handle PCS configuration specifics in one location, rather
   9 than the two call sites. phylink_pcs_link_up() gives us consistency.
  10
  11 Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
  12 Link: https://lore.kernel.org/r/E1q1TzK-007Exd-Rs@rmk-PC.armlinux.org.uk
  13 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
  14 ---
  15  drivers/net/phy/phylink.c | 53 ++++++++++++++++++++++++---------------
  16  1 file changed, 33 insertions(+), 20 deletions(-)
  17
  18 --- a/drivers/net/phy/phylink.c
  19 +++ b/drivers/net/phy/phylink.c
  20 @@ -991,6 +991,25 @@ static void phylink_resolve_an_pause(str
  21         }
  22  }
  23
  24 +static int phylink_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
  25 +                             const struct phylink_link_state *state,
  26 +                             bool permit_pause_to_mac)
  27 +{
  28 +       if (!pcs)
  29 +               return 0;
  30 +
  31 +       return pcs->ops->pcs_config(pcs, mode, state->interface,
  32 +                                   state->advertising, permit_pause_to_mac);
  33 +}
  34 +
  35 +static void phylink_pcs_link_up(struct phylink_pcs *pcs, unsigned int mode,
  36 +                               phy_interface_t interface, int speed,
  37 +                               int duplex)
  38 +{
  39 +       if (pcs && pcs->ops->pcs_link_up)
  40 +               pcs->ops->pcs_link_up(pcs, mode, interface, speed, duplex);
  41 +}
  42 +
  43  static void phylink_pcs_poll_stop(struct phylink *pl)
  44  {
  45         if (pl->cfg_link_an_mode == MLO_AN_INBAND)
  46 @@ -1074,18 +1093,15 @@ static void phylink_major_config(struct
  47
  48         phylink_mac_config(pl, state);
  49
  50 -       if (pl->pcs) {
  51 -               err = pl->pcs->ops->pcs_config(pl->pcs, pl->cur_link_an_mode,
  52 -                                              state->interface,
  53 -                                              state->advertising,
  54 -                                              !!(pl->link_config.pause &
  55 -                                                 MLO_PAUSE_AN));
  56 -               if (err < 0)
  57 -                       phylink_err(pl, "pcs_config failed: %pe\n",
  58 -                                   ERR_PTR(err));
  59 -               if (err > 0)
  60 -                       restart = true;
  61 -       }
  62 +       err = phylink_pcs_config(pl->pcs, pl->cur_link_an_mode, state,
  63 +                                !!(pl->link_config.pause &
  64 +                                   MLO_PAUSE_AN));
  65 +       if (err < 0)
  66 +               phylink_err(pl, "pcs_config failed: %pe\n",
  67 +                           ERR_PTR(err));
  68 +       else if (err > 0)
  69 +               restart = true;
  70 +
  71         if (restart)
  72                 phylink_mac_pcs_an_restart(pl);
  73
  74 @@ -1136,11 +1152,9 @@ static int phylink_change_inband_advert(
  75          * restart negotiation if the pcs_config() helper indicates that
  76          * the programmed advertisement has changed.
  77          */
  78 -       ret = pl->pcs->ops->pcs_config(pl->pcs, pl->cur_link_an_mode,
  79 -                                      pl->link_config.interface,
  80 -                                      pl->link_config.advertising,
  81 -                                      !!(pl->link_config.pause &
  82 -                                         MLO_PAUSE_AN));
  83 +       ret = phylink_pcs_config(pl->pcs, pl->cur_link_an_mode,
  84 +                                &pl->link_config,
  85 +                                !!(pl->link_config.pause & MLO_PAUSE_AN));
  86         if (ret < 0)
  87                 return ret;
  88
  89 @@ -1272,9 +1286,8 @@ static void phylink_link_up(struct phyli
  90
  91         pl->cur_interface = link_state.interface;
  92
  93 -       if (pl->pcs && pl->pcs->ops->pcs_link_up)
  94 -               pl->pcs->ops->pcs_link_up(pl->pcs, pl->cur_link_an_mode,
  95 -                                         pl->cur_interface, speed, duplex);
  96 +       phylink_pcs_link_up(pl->pcs, pl->cur_link_an_mode, pl->cur_interface,
  97 +                           speed, duplex);
  98
  99         pl->mac_ops->mac_link_up(pl->config, pl->phydev, pl->cur_link_an_mode,
 100                                  pl->cur_interface, speed, duplex,